19770840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{54919}}^1$

素因数の和:54936

約数の個数: 48

約数和(自身を含む): 64256400

約数和(自身を除く): 44485560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 54919, 109838, 164757, 219676, 274595, 329514, 439352, 494271, 549190, 659028, 823785, 988542, 1098380, 1318056, 1647570, 1977084, 2196760, 2471355, 3295140, 3954168, 4942710, 6590280, 9885420, 19770840]

約数ペア:

[(1, 19770840), (2, 9885420), (3, 6590280), (4, 4942710), (5, 3954168), (6, 3295140), (8, 2471355), (9, 2196760), (10, 1977084), (12, 1647570), (15, 1318056), (18, 1098380), (20, 988542), (24, 823785), (30, 659028), (36, 549190), (40, 494271), (45, 439352), (60, 329514), (72, 274595), (90, 219676), (120, 164757), (180, 109838), (360, 54919)]